EP 2239854 B1 20121017 - Shortening and puncturing of low-density parity-check (LDPC) codes for channel decoding
Title (en)
Shortening and puncturing of low-density parity-check (LDPC) codes for channel decoding
Title (de)
Verkürzen und Punktieren von Low-Density Parity-Check (LDPC) Codes für die Kanaldecodierung
Title (fr)
Raccourcissement et poinçonnage de codes du type LDPC pour le décodage de canal
Publication
Application
Priority
- EP 08021308 A 20081208
- KR 20070126083 A 20071206
- KR 20070127365 A 20071210
- KR 20080012082 A 20080211
- KR 20080023848 A 20080314
Abstract (en)
[origin: EP2068449A2] A method for encoding a channel in a communication system using a Low-Density Parity-Check (LDPC) code. The method includes generating a plurality of column groups by grouping (categorizing) columns corresponding to an information word in a parity-check matrix of the LDPC code, and ordering the column groups; determining a range of an information word desired to be obtained by performing shortening; based on the determined range of the information word, performing column group-by-column group shortening on the column groups in order according to a predetermined shortening pattern; and LDPC encoding the shortened information word.
IPC 8 full level
H03M 13/00 (2006.01); H03M 13/11 (2006.01); H03M 13/15 (2006.01); H03M 13/29 (2006.01)
CPC (source: EP US)
H03M 13/1165 (2013.01 - EP US); H03M 13/2906 (2013.01 - EP US); H03M 13/618 (2013.01 - EP US); H03M 13/6362 (2013.01 - EP US); H03M 13/6393 (2013.01 - EP US); H03M 13/152 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2068449 A2 20090610; EP 2068449 A3 20090805; EP 2068449 B1 20120111; AU 2008332040 A1 20090611; AU 2008332040 B2 20120405; CN 101889398 A 20101117; CN 101889398 B 20131023; EP 2239854 A1 20101013; EP 2239854 B1 20121017; EP 2239854 B9 20150218; EP 2381582 A1 20111026; EP 2381582 B1 20130410; EP 2381583 A1 20111026; EP 2381583 B1 20130403; EP 2381583 B9 20150218; JP 2011507329 A 20110303; JP 5302972 B2 20131002; PL 2068449 T3 20120629; PL 2239854 T3 20130329; PL 2381582 T3 20130930; PL 2381583 T3 20130930; US 2009158129 A1 20090618; US 8166367 B2 20120424; WO 2009072854 A1 20090611
DOCDB simple family (application)
EP 08021308 A 20081208; AU 2008332040 A 20081208; CN 200880119339 A 20081208; EP 10169986 A 20081208; EP 11174714 A 20081208; EP 11174715 A 20081208; JP 2010536858 A 20081208; KR 2008007249 W 20081208; PL 08021308 T 20081208; PL 10169986 T 20081208; PL 11174714 T 20081208; PL 11174715 T 20081208; US 32972808 A 20081208